• Addition of four datasets to test the different functions.
  • Verification that graphical setting are restored upon exit of the functions.
  • The statements T/F were changed to TRUE/FALSE in all the functions.
  • The examples of the functions write data on tempdir().
  • To compile with the CRAN policies, we explicitly ask the user whether a file (csv or pdf) should be created on the working directory when a given function is called.